<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <script>
        function Person(name) {
            this.name = name;
        }
        Person.prototype = {
            constructor: Person,
            eat: function () {
                console.log(this.name + '吃午饭');
            },
            walk: function () {
                console.log(this.name + '散步');
            },
            sayhi: function () {
                console.log(this.name + ': 你好啊！');
            }
        }


        var p1 = new Person('jack');
        p1.eat();
        p1.walk()

        var p2 = new Person('andy');
        p2.eat();
        p2.walk()

        p2.sayhi();

        console.log(p1.eat == p2.eat); //true












    </script>
</body>

</html>